package com.apache.netty.protocoltcp;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.MessageToByteEncoder;

public class MyMessageEncoder extends MessageToByteEncoder<MessageProtocol> {
  @Override
  protected void encode(ChannelHandlerContext ctx, MessageProtocol msg, ByteBuf out)
      throws Exception {
    System.out.println("MyMessageEncoder encode 方法被调用");
    out.writeInt(msg.getLen());
    out.writeBytes(msg.getContent());
  }
}
